is another method that can be used to give producers with fine grained access control [1]}. In the case of CP-ABE, when a producer shares CTI, they encrypt it using attribute-based encryption methods [2]}. The ciphertext that results from this process is then added to the blockchain. When a user access this ciphertext they are able to decrypt parts of it based on their own attributes. As a result, users can define highly specific fine grained access control policies using CP-ABE.
